Common cold differs from pneumonia in, that:
1. | Pneumonia is a communicable disease, whereas common cold is a nutritional deficiency disease |
2. | Pneumonia can be prevented by a live attenuated bacterial vaccine, whereas the common cold has no effective vaccine |
3. | Common cold is caused by a virus, while Pneumonia is caused by a bacterium. |
4. | Pneumonia pathogen infects alveoli whereas common cold affects the nose and the respiratory passage but not the lungs |
Which one of the following is not a property of cancerous cells, whereas the remaining three are?
1. | They compete with normal cells for vital nutrients |
2. | They do not remain confined in the area of formation |
3. | They divide in an uncontrolled manner |
4. | They show contact inhibition |
In which one of the following options the two examples are correctly matched with their particular type of immunity?
Examples | Type of immunity | |
(a) | Polymorphonuclear leukocytes and monocytes | Cellular barriers |
(b) | Anti-tetanus and anti-snake bite injection | Active immunity |
(c) | Saliva in mouth and tears in eyes | Physical barriers |
(d) | Mucus coating of the epithelium lining the urinogenital tract and HCl in the stomach | Physiological barriers |
Cirrhosis of the liver is caused by the chronic intake of:
1. Opium
2. Alcohol
3. Tobacco (chewing)
4. Cocaine
A certain patient, X, is suspected to be suffering from acquired immune deficiency syndrome. Which diagnostic technique will you recommend for its detection?
1. | MRI | 2. | Ultra Sound |
3. | WIDAL | 4. | ELISA |
At which stage of HIV infection does one usually shows symptoms of AIDS?
1. | When viral DNA is produced by reverse transcriptase. |
2. | When HIV replicates rapidly in helper T-lymphocytes and damages a large number of these. |
3. | Within 15 days of sexual contact with an infected person. |
4. | When the infecting retrovirus enters host cells. |
1. Tears
2. Monocytes
3. Skin
4. Epithelium of urogenital tract
1. | Red blood corpuscles of humans suffering from malaria |
2. | Spleen of infected humans |
3. | Salivary glands of a freshly moulted female anopheles mosquito |
4. | Saliva of an infected female anopheles mosquito |
Select the correct statement from the ones given below:
1. | Barbiturates when given to criminals make them tell the truth |
2. | Morphine is often given to persons who have undergone surgery as a painkiller |
3. | Chewing tobacco lowers blood pressure and heart rate |
4. | Cocaine is given to patients after surgery as it stimulates recovery |
Ringworm in humans is caused by:
1. | bacteria | 2. | fungi |
3. | nematodes | 4. | viruses |